Press.



I F. VLSIMPSON.

' PRESS.

APPLICATION FILED JUNE29, 1914.

1,81 6 1%., i Patented Feb.13,1917.

' FROST V. SIMPSON, F MILWAUKEE, WISCONSIN, ASSIGNOB. T0 KIEC 111:

COMP 0F MILWAUKEE, WISCONSIN, A CORPORATION CF WISCONSIN.

PRESS.

Patented Feb. 113, 191?.

Application filed June as, 1914. Serial No. 847,819.

11,216,135, Specification of Letters Fatent.

To all whom it may concern:

Be it known that I, Fnos'r V. SIMPSON, a citizen of the United States,and resident of Milwaukee, in the county of Milwaukee and t State ofWisconsin, have invented new and useful Improvements in Presses, ofwhich .the following is a description, reference being had to theaccompanying drawings,

thereof, said socket serving as the pivotal support for a platen stem 23carrying a platen 24 at its upper end. The pivotal connection of thesocket 22 with the base plate is preferably at the front thereof so thatas the platen swings forwardly from its upright operative position it isslightly lifted and then permitted to fall to the position Which are apart of this specification.

This invention has for its object to provide a press for clamping theflaps of a paper or fiber box during the setting of the adhesive whichholds them together.

Another object of the invention is to provide such a press with aswinging platen which will be capable of a movement to a position whereit will be accessible for placing the box thereon or removing the boxtherefrom without obstruction by the plunger.

Another object of the invention is to perfect details of construction ofa press of this character. 7

With the above and other objects in view the invention consists in thepress as herein claimed and all equivalents.

' in which like characters of reference in Referring to the accompanyingdrawings cate the same parts in the difierent views:

Figure 1 is a rear elevation of a press constructed in accordance withthis invention;

Fig. 2 is an end elevation thereof; and,

Fig. 3 is a plan view of the rack for supporting the box.

In these drawings 10 indicates vertical standards supportin a pair ofparallel horizontal rods 11. A double yoke frame 12 is secured to thehorizontal rods 11 and forms a guide with upper and lower bearings for avertical plunger rod 13 carrying a plunger 14 at its lower end. A fiathead 15 is seecured to the upper end of the plunger stem 13 and isengaged by a cam 16 on a lever 17 which is pivotally mounted between apair of upstanding cars 18. Within the central opening of the frame 12there is a coil spring 19 surrounding the plunger stem and engaging atits ends against the lower end of the opening and a stop 20 on theplunger stem, the action of the spring being to lift the plunger whenthehandle 17 is raised to the position shown by dotted lines in Fig. 2.

Secured to the floor beneath the frame 12 is a base plate 21 having asocket 22 pivotally -rnounted between upstang ears shown in dotted linesin Fig. 2 where it is held by a toe 25 on the socket engaging the baseplate. At the rear the socket 22 has an arm carrying a set screw 26 toengage the base plate and limit the backward movement of the platen tothe position in which it stands in proper relation to cotiperate withthe plunger as shown in Fig. 2.

Adjustably mounted on the platen stem 23 is a box supporting frame 27,preferably consisting of a pair of U-shaped strap metal frame sectionsbolted together with the platen stem 23 between them as shown in Fig. 3.

In operation the platen is thrown forward to the position shown indotted lines in Fig. 2, while the plunger is in its upper position andthe tubular box 28, which is shipped from the manufacturer to the userin the tubular form in acollapsed or knocked down condition is slippedthereon. The platen is of a size to just fit within the box and isremovable so as to be changed for another of the proper size when thesize of box is changed. The box rests on the box supporting frame 27 andthe flaps of the box are folded over upon the platen where they aretreated with silicate of soda or other adhesive and then the platen isswung to its rear or operative position and the handle 17 is broughtforward to the position shown in full lines in Fig. 2, the cam 16forcing the plunger downwardly against the action of the spring andagainst the folded flaps of the box. It is preferred to arrange a numberof the presses on the same supporting-frame side by side so that oneoperator may clamp one after the other and each be left in its clampedposition a sufficient length of time for the adhesive to set before itsnext operation. When the lever 17 is raised the spring 19 lifts theplunger and the operator draws the platen forwardly and removes thebox-therefrom.

The press of this invention is of a simple construction, permitting of arapid operation, and subjects the box flaps to great presplane of thesaid flaps when the plunger is in its upper position. Before loweringthe plunger the operator presses the box flaps toward the center of thepress and whlle holding them in this osition. the lever 17 is thrown tobring the p unger to its operative position. 1

In the claims'I use the words cam mechanism to include of course theequivalents thereof such for instance as toggles.

What I claim as new and desire to secure by Letters Patent is:

1. A press for sealing flaps of fiber boxes and the like, comprising acam operated plunger, a swinging platen therebeneath adapted to movefrom an operative position in which it cooperate with the plunger to aninoperative position in which the plunger will not interfere with theboxes belng placed thereon or removed therefrom, and downwardlyextending lugs at the rear and at oneside of the plunger against whichthe box flaps may be squared efore lowering the plunger. I

2. A ress for sealing fla s of fiber boxes and the 'ke, com risin a punger, a swinging platen there eneat from an o erative position in whichit cooperates with the plun er to an inoperative osition in which the punger will not interere with the boxes being placed thereon or removedtherefrom, an downwardly extending lugs along one edge of the plungeragainst which the box flaps may be forced before lowering the plunger.

3. A press for sealing flaps of fiber boxes and the like, comprising aplunger, a platen therebeneath adapted to move from an operativeposition in which it cooperates with the plunger to an inoperativeposition in which the plunger will not interfere with the boxes beingplaced thereon or removed therefrom, and downwardly extending lugs alongone edge of the Flunger against which the box flaps may be orced beforelowering the plunger.

In testimony whereof, I afiix my signature, in presence of twowitnesses.

FROST V. SIMPSON. Witnesses:

R. S. G. CALDWELL, KATHERINE HOLT.

adapted to move

